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A rice cake, Biko in Filipino, may be any kind of food item made from rice that has been shaped, condensed, or otherwise combined into a single object. A wide variety of rice cakes exist in many different cultures in which rice is eaten, and are particularly prevalent in Asia. Common variations include cakes made with rice flour, those made from ground rice, and those made from whole grains of rice compressed together or combined with some other binding substance.
Types of rice cakes by region
Types of rice cake include:
In Chinese cuisine
- Nian gao includes many varieties, all made from glutinous rice that is pounded or ground into a paste and, depending on the variety, may simply be molded into shape or cooked again to settle the ingredient.
- Tangyuan is made by mixing glutinous rice flour with a small amount of water to form balls and is then cooked and served in boiling water.
- Erkuai literally means "ear piece," a reference to the shape of one of its common forms.
- Tainan Bowl Rice Cake has its origins in the southern Taiwanese city, Tainan. The dish is made by steaming glutinous rice once, then putting toppings in it and steaming it again.
In Korean cuisine
Steamed rice cake in an earthenware steamer was the oldest principal food for Koreans before sticky rice took over upon the invention of iron pot.  Now, there are hundreds of different kinds of Korean rice cake or "tteok" eaten year round. In Korea, it is customary to eat tteok guk (tteok soup) on New Year's Day and sweet tteok at weddings and on birthdays. It is often considered a celebratory food and can range from rather elaborate versions or down to the plain-flavored tteok. Rice cakes are chosen for particular occasions depends on their color and the role they play in Korea’s traditional yin-yang cosmology. 
- Tteok is a class of Korean cakes mostly made with glutinous rice flour (also known as sweet rice or chapssal). Tteok is usually divided into four categories: "Steamed tteok" (찌는 떡, 甑餠), "Pounded tteok" (치는 떡, 搗餠), "Boiled tteok" (삶는 떡 搗餠) and "Pan-fried tteok" (지지는 떡 油煎餠).
- Sirutteok is one kind of steamed tteok that are rice (맵쌀, maepssal in Korean) or glutinous rice (찹쌀 chapssal) and sometimes they are mixed together with (but not limited to) other grains, beans (azuki beans or mung beans), sesame seeds, wheat flour, or starch can be mixed with the rice. Fruits and nuts are used as subsidiary ingredients.
- Injeolmi is an example of pounded tteok. The traditional preparation for pounded tteok is made by pounding rice or glutinous rice with utensils called jeolgu and jeolgutgongi or tteokme and anban. Injeolmi (tteok coated with bean powder), garaetteok (가래떡 cylinder-shaped white tteok), jeolpyeon (절편 patterned tteok) and danja (단자 glutinous tteok ball coated with bean paste)” are commonly eaten pounded tteok.
- Songpyeon and Bupyeon are rice cakes which have been molded into shaped. There are dozens of these kinds of cakes in Korea, some can consist of doughs of glutinous rice flour and a sweet filling and covered with gomul, kind of powdered beans. Ggul tteok (꿀떡) - literally means "tteok with honey" but the tteok is stuffed with Korean syrup. Ggul tteok is similar to songpyeon in shape, but smaller in size.
- Hwajeon - small sweet pancakes made of flour of glutinous rice, and flower petals of Korean azalea, chrysanthemum, or rose.
- Tteokbokki is another dish apart from tteok guk that is made with tteok. It is a (usually) spicy dish commonly sold by street vendors, made with garaetteok.
- Ddeokkuck is a dish that is eaten in Seollal. It is like a soup. Ingredients are sliced Ddeok, anchovy, eggs and so on. Ddeokkuck is symbol of aging.
In Japanese cuisine
The Japanese rice cake came from Korea in Jōmon period. They used Korean rice cake as a reference and the rice cake evolved into Japanese sweets Wagashi by development of the Japanese tea ceremony.
- Mochi is made of glutinous rice pounded into paste and molded into shape. In Japan it is traditionally made in a ceremony called mochitsuki. While also eaten year-round, mochi is a traditional food for the Japanese New Year and is commonly sold and eaten during that time. Mochi is also a prominent snack in Hawaii, Taiwan, Cambodia, and Thailand.
- Senbei are a type of Japanese rice crackers, usually cooked by being baked or grilled, traditionally over charcoal. While being prepared they may be brushed with a flavoring sauce, often one made of soy sauce and mirin. They may then be wrapped with a layer of nori. Alternatively they may be flavored with salt or so-called "salad" flavoring.
In Indo-Bengali cuisine
- Pitha, in the Bengali, Assamese and Oriya cuisines, is usually a thin-flat cake prepared from a batter made with soaked and ground rice. They are usually cooked on a hot griddle or frying pan and could be fried in oil, roasted over a slow fire or baked and rolled over a hot plate once made. In West Bengal and Bangladesh, special pithas are made in different processes such as steaming or stuffing, the bhapa and puli pithas being examples respectively. Special festivals where pithas are generally made include Nabanna in Bengali culture, Bihu in Assam and many festivals in East India.
- Idli in South Indian cuisine. The cakes are usually two to three inches in diameter and are made by steaming a batter, which is fermented overnight, consisting of black lentils (de-husked),and rice approximately 1:2 ratio with a bit of salt. Usually eaten with coconut chutney or sambhar - a type of lentil soup flavoured with tamarind.
- Puttu in South Indian cuisine, consists of firm cylinders of steamed ground rice with layers of coconut.
In South East Asian cuisine
As staple food
In Indonesia rice cake can be plain and bland tasted, treated as staple food as the alternative to steamed rice.
- Ketupat, or packed rice is a type of rice dumpling of Indonesia. Also can be found in Brunei, Malaysia, the Philippines, and Singapore. It is made from rice that has been wrapped in a Rhombus or kite shaped woven palm leaf pouch and boiled. As the rice cooks, the grains expand to fill the pouch and the rice becomes compressed. This method of cooking gives the ketupat its characteristic form and texture of a rice dumpling. Ketupat is usually eaten with rendang or served as an accompaniment to satay or gado-gado. Ketupat is also traditionally served by Malays at open houses on festive occasions such as Idul Fitri (Hari Raya Aidilfitri). During Idul Fitri in Indonesia, ketupat is often served with opor ayam (chicken in coconut milk), accompanied with spicy soy powder.
- Lontong, popular in Indonesia and also can be found in Malaysia, is made of compressed rice that is then cut into small cakes. It is traditionally made by boiling the rice until it is partially cooked and packing it tightly into a rolled-up banana leaf. The leaf is secured and cooked in boiling water for about 90 minutes. Once the compacted rice has cooled, it can be cut up into bite-sized pieces. The dish is usually served cold or at room temperature with sauce-based dishes such as gado-gado and salads, although it can be eaten as an accompaniment to other dishes such as Satay and curries.
- Klepon, balls of glutinous rice flour filled with gula jawa (red coconut sugar), boiled or steamed. The balls are rolled upon grated coconut as the coconut granules stuck upon the balls. It is called "onde-onde" in Sumatra and Malay Peninsula
- Putu, green pandan colored rice flour filled with coconut sugar and steamed in bamboo cylinder.
- Kue lapis, layered colorful cake made of glutinous rice flour, coconut and sugar.
- Lupis, compressed glutinous rice served with grated coconut and coconut sugar syrup.
- Nagasari or kue pisang, traditional steamed cake made from rice flour, coconut milk and sugar, filled with slices of banana.
- Serabi, traditional Indonesian pancake that is made from rice flour with coconut milk or just plain shredded coconut as an emulsifier.
- Lemper, a savoury snack made of glutinous rice filled with chicken, fish or abon (meat floss). The meat filling is rolled inside the rice, in a fashion similar to an egg roll.
- Semar mendem, variants of lemper, instead wrapped with banana leaf, the glutinous rice filled with chicken, fish or meat floss is wrapped inside thin egg omelette.
- Arem-arem, a smaller lontong filled with vegetables and meat.
In Filipino cuisine
A common snack in the country, Filipinos have created many different kinds of rice cakes. In local language, it is called kakanin, derived from the word kanin, meaning prepared rice.
- Bibingka is a type of rice cake made with rice flour and coconut milk or water, with its bottom lined with banana leaves. It is traditionally baked using specially made clay ovens and preheated charcoal.
- Espasol is made from rice flour cooked in coconut milk and sweetened coconut strips, dusted with toasted rice flour.
- Kutsinta is a steamed rice cake made with rice flour, brown sugar, lye, and freshly grated mature coconut meat.
- Palitaw is a boiled rice cake disk covered with freshly grated mature coconut meat and sugar.
- Puto, derived from Indian cuisine puttu, is a steamed rice cake popular all over the country. It can be eaten alone as a snack, typically flavored with cheese, butter or butter substitute, or freshly grated mature coconut meat. It is also an accompaniment to a number of savory dishes, and as dessert in gatherings and festivities.
- Sapin-sapin is made from glutinous rice flour, coconut milk, sugar, water, and coconut flakes sprinkled on top. Its distinguishing layered appearance is achieved by using food coloring.
- Suman is made from glutinous rice cooked in coconut milk, and often steamed in banana leaves.
In Vietnamese cuisine
- Bánh bèo is a variety of small steamed rice cake or rice pancake typically featuring a dimple in the center, which is filled with savory ingredients including chopped dried or fresh shrimp, scallions, mung bean paste, crispy fried shallots, fish sauce, rice vinegar, and oil.
- Bánh bò is a sweet, chewy sponge cake made from rice flour, water, sugar, and yeast.
- Bánh đúc is a cake made from non-glutinous rice flour (although corn flour is also used in northern Vietnam). In the north it is typically garnished with savory ingredients such as ground pork, tôm chấy (grilled ground shrimp), fried onions, sesame seeds, salt, peanuts, lime juice, and soy sauce or fish sauce. In the south, it is served as a dessert, and takes the form of gelatinous blocks that are often colored green by the addition of Pandanus amaryllifolius leaf extract. It is cooked by boiling the ingredients and allowing them to cool, solidifying into a jelly-like sheetphoto that is then cut into blocks.
- Bánh chưng is made from glutinous rice, mung bean, pork and other ingredients. Bánh tét is much the same but cut in a circular form, and consumed in celebration of the Vietnamese holiday Tết.
In other cuisines
- Chwee kueh, (literally "water rice cake") is a type of steamed rice cake, a cuisine of Singapore and Johor. It is made by mixing rice flour and water to form a slightly viscous mixture, which is then placed in small cup-shaped containers that look like saucers and steamed, forming a characteristic bowl-like shape when cooked. The rice cakes are topped with diced preserved radish and served with chilli sauce. Chwee kueh is a popular breakfast item in Singapore and Johor.
- Puffed rice cakes, popular in North America and other Western countries, are made with puffed rice, a puffed grain usually created by heating rice kernels under high pressure in the presence of steam, though the method of manufacture varies widely. The puffed grains are then bonded together by a wide variety of methods in the form of a cake. They are popular among young children and among dieters as a lower calorie substitute for bread, crackers, or chips. They are often apple or honey flavored.
- Rijsttaart and Rijstevlaai in Dutch and Belgian cuisine are kinds of rice pie, with the filling of mixed rice, sugar, eggs and milk.
- In Italian cuisine, specifically the cuisine of Tuscany, torte di riso are rice cakes sometimes eaten as a substantial dessert at the end of a meal.
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